Patents
US 10914866 B1: Methods and materials for metamaterials exhibiting form-induced birefringence
- Granted
- 2021-02-09
- Filed
- 2018-07-17 application 16038004
- Type
- Utility · 18 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Materials comprising metamaterials exhibiting form-induced birefringence and anisotropic optical properties are provided. The disclosed articles comprise structures with critical dimensions which are on the order of or smaller than the wavelength for the gigahertz and terahertz spectral range. Methods of preparing same using stereolithography are disclosed. In a further aspect, the disclosed methods pertain to spectroscopic ellipsometry methods comprising a biaxial (orthorhombic) layer homogenization approach is to analyze the terahertz ellipsometric data obtained at three different sample azimuth orientations. The disclosed articles and methods demonstrate provide an avenue to fabricate metamaterials for the terahertz spectral range and allows tailoring of the polarizability and anisotropy of the host material. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
Source: PVGPATDIS, file of 2026-04-10 (ipg210209.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| HARRIS CORPORATION GCS 1 patents | US company or organization | Palm Bay, FL | PVGPATDIS, file of 2026-04-10 | |
| University of North Carolina Charlotte 6 patents | US company or organization | Charlotte, NC | PVGPATDIS, file of 2026-04-10 | |
| J.A. WOOLLAM CO., INC. 108 patents | US company or organization | Lincoln, NE | J.A. WOOLLAM CO., INC. State business registration EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Tino Hofmann | Harrisburg, NC | 18 | PVGPATDIS, file of 2026-04-10 | |
| Daniel Fullager | Charlotte, NC | 1 | PVGPATDIS, file of 2026-04-10 | |
| Stefan Schoeche | Lincoln, NE | 9 | PVGPATDIS, file of 2026-04-10 | |
| Craig M. Herzinger | Lincoln, NE | 36 | PVGPATDIS, file of 2026-04-10 | |
| Susanne Madeline Lee | Cocoa, FL | 25 | PVGPATDIS, file of 2026-04-10 | |
| Erin K. Sharma | Palm Bay, FL | 5 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G02B | Optical elements, systems or apparatus | G02B1/04 | PVGPATDIS, file of 2026-04-10 |
| B29C | Shaping or joining of plastics; shaping of material in a plastic state, not otherwise provided for; after-treatment of the shaped products, e.g. repairing | B29C64/135 | PVGPATDIS, file of 2026-04-10 |
| B33Y | Additive manufacturing, i.e. manufacturing of three-dimensional [3d] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3d printing, stereolithography or selective laser sintering | B33Y80/00 | PVGPATDIS, file of 2026-04-10 |
| B29K | Indexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for ; moulds, ; reinforcements, fillers or preformed parts, e.g. inserts | B29K2033/08 | PVGPATDIS, file of 2026-04-10 |
| B29L | Indexing scheme associated with subclass b29c, relating to particular articles | B29L2011/00 | PVGPATDIS, file of 2026-04-10 |
| Y10T | Technical subjects covered by former us classification | Y10T428/26 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2020-03-03 | Assignment Assignment of assignor's interest | LEE, SUSANNE MADELINE signed 2018-07-23 SHARMA, ERIN KATHLEEN signed 2018-07-23 | HARRIS CORPORATION GCS PALM BAY, FL | 51992/85 | ECORSEXC, file of 2026-09-25 |
| 2020-03-03 | Assignment Assignment of assignor's interest | HOFMANN, TINO signed 2019-07-31 FULLAGER, DANIEL signed 2019-08-21 | UNIVERSITY OF NORTH CAROLINA CHARLOTTE CHARLOTTE, NC | 51991/753 | ECORSEXC, file of 2026-09-25 |
| 2020-03-03 | Assignment Assignment of assignor's interest | HERZINGER, CRAIG M. signed 2019-07-30 SCHOECHE, STEFAN signed 2019-08-01 | J.A. WOOLLAM CO. INC. LINCOLN, NE | 51991/591 | ECORSEXC, file of 2026-09-25 |
| 2018-08-29 | Government interest Confirmatory license | UNIVERSITY OF NORTH CAROLINA, CHARLOTTE signed 2018-08-14 | NATIONAL SCIENCE FOUNDATION ALEXANDRIA, VA | 46736/510 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.